diff --git a/Gemfile.lock b/Gemfile.lock
index c38daf4..5f6e804 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -84,8 +84,8 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.0.5)
-    connection_pool (2.2.1)
+    concurrent-ruby (1.1.9)
+    connection_pool (2.2.5)
     debug_inspector (0.0.3)
     devise (4.3.0)
       bcrypt (~> 3.0)
@@ -150,7 +150,9 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mimemagic (0.3.2)
+    mimemagic (0.4.3)
+      nokogiri (~> 1)
+      rake
     mini_portile2 (2.3.0)
     minitest (5.10.3)
     monetize (1.7.0)
@@ -193,9 +195,9 @@ GEM
       postmark (~> 1.10.0)
     public_suffix (3.0.2)
     puma (3.9.1)
-    rack (2.0.3)
+    rack (2.2.3)
     rack-cors (1.0.2)
-    rack-protection (2.0.0)
+    rack-protection (2.1.0)
       rack
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -230,7 +232,7 @@ GEM
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
-    redis (3.3.3)
+    redis (4.1.4)
     responders (2.4.0)
       actionpack (>= 4.2.0, < 5.3)
       railties (>= 4.2.0, < 5.3)
@@ -249,11 +251,11 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
-    sidekiq (5.0.4)
-      concurrent-ruby (~> 1.0)
-      connection_pool (~> 2.2, >= 2.2.0)
+    sidekiq (5.2.9)
+      connection_pool (~> 2.2, >= 2.2.2)
+      rack (~> 2.0)
       rack-protection (>= 1.5.0)
-      redis (~> 3.3, >= 3.3.3)
+      redis (>= 3.3.5, < 4.2)
     simple_form (3.5.0)
       actionpack (> 4, < 5.2)
       activemodel (> 4, < 5.2)